EP0451159A1 - Procede de granulation en continu - Google Patents

Procede de granulation en continu

Info

Publication number
EP0451159A1
EP0451159A1 EP89912447A EP89912447A EP0451159A1 EP 0451159 A1 EP0451159 A1 EP 0451159A1 EP 89912447 A EP89912447 A EP 89912447A EP 89912447 A EP89912447 A EP 89912447A EP 0451159 A1 EP0451159 A1 EP 0451159A1
Authority
EP
European Patent Office
Prior art keywords
gel
liquid
solid
time
tends
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP89912447A
Other languages
German (de)
English (en)
Inventor
Elmar Wilms
Frank Wiemer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0451159A1 publication Critical patent/EP0451159A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
    • B01J2/08—Gelation of a colloidal solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties

Definitions

  • the invention relates to a process for the continuous granulation of a mixture containing at least one solid and at least one liquid which tends to form gel.
  • Such granulation takes place e.g. B. in the manufacture of detergents.
  • Such granules have hitherto been produced as follows: The liquid ingredients have been sprayed onto a granulated carrier produced by spray drying or incorporated into a pre-prepared recipe using a granulation process. Solid ingredients, on the other hand, were either made into a slurry and spray-dried or directly mixed in as a powder.
  • the invention has for its object to provide a method of the type mentioned, which works with a gel-like intermediate phase and can be operated continuously.
  • This object is achieved according to the invention in a process of the type mentioned at the outset that a mixture containing liquid raw materials which does not tend to gel alone is used as the liquid which tends to gel formation and which is produced in a static mixer, the mean residence time in this Mixer is shorter than the gelation time that the liquid is then allowed to gel in a stirred tank, the mean residence time in the stirred tank being longer than the gelation time, and only then is the highly viscous mass obtained granulated together with the solid.
  • the static mixer essentially consists of a tubular one Channel in which individual swirling elements are permanently installed, and when the liquid flows through this tubular element, it is thoroughly mixed.
  • this viscosity can be influenced by using a coolable or heatable stirred tank.
  • No special pelletizer is required for the invention.
  • All commercially available granulating devices including, for example, continuous moistening mixers) are suitable for practicing the invention.
  • a ploughshare mixer is used for granulating.
  • the gel is granulated immediately after it has entered the granulating device is chopped and then swirled with the solid. The initial chopping results in a small particle size very soon after the gel has entered the granulator. This keeps the mass in the granulator free-flowing and does not cake into a large lump.
  • a mixture of nonionic surfactants and what containing or. water-releasing substances such as B. Water glass or zeolite suspension is used. It is also advantageous if spray-dried zeolite and / or a layered silicate, in particular bentonite or. Solid mixtures of preferably non-polar or a few polar substances are used.
  • the gel is continuously introduced and granulated by the liquids supplied to the stirred tank in a free-flowing manner or with the appropriate metering elements in the granulating device for producing the granules together with metered solids.
  • nonionic surfactant e.g. B. Dehydol LST
  • 20 parts water glass solution e.g. B. Water glass N
  • 40 to 60 parts of zeolite suspension used.
  • 35 to 55 parts of the gel described and 65 to 45 parts of solids or solid mixtures are used to form the granules.
  • These solids consist of spray dried zeolite, e.g. B. Wessalith P, resp. Bentonite, or a mixture of zeolite and bentonite. It can also be a mixture of 30 to 70 parts of zeolite, 10 to 40 parts of bentonite and 10 to 30 parts of soda. The proportions are variable. However, soda should not make up more than 30 parts in the solid mixture.
  • a specific example discloses a gel composed of 2.0 parts of nonionic surfactant, 10 parts of water glass and 20 parts of zeolite suspension, to which 50 parts of spray-dried zeolite are added. This gives a bulk density of 840 g / l, which is easy to pour.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Detergent Compositions (AREA)
  • Glanulating (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Medicinal Preparation (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Housing For Livestock And Birds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Colloid Chemistry (AREA)
  • Saccharide Compounds (AREA)

Abstract

L'invention se rapporte à un procédé de granulation en continu d'un mélange renfermant au moins un produit solide et au moins un liquide ayant tendance à se gélifier. Afin de pouvoir travailler avec une telle phase intermédiaire gélifiée, en ayant toutefois la possibilité d'effectuer la granulation en continu, il est proposé d'utiliser comme liquide ayant tendance à se gélifier, un mélange renfermant des matières premières liquides n'ayant pas tendance par elles-mêmes à se gélifier, préparé dans un malaxeur statique, en prévoyant un temps de séjour moyen dans ce malaxeur, plus court que le temps de gélification, puis de faire gélifier le liquide dans une chaudière à agitateur, en prévoyant un temps de séjour moyen dans cette chaudière plus long que le temps de gélification, puis de procéder, seulement après, à la granulation de la masse de haute viscosité obtenue, conjointement avec le produit solide.
EP89912447A 1988-12-27 1989-10-12 Procede de granulation en continu Pending EP0451159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3844025A DE3844025A1 (de) 1988-12-27 1988-12-27 Verfahren zum kontinuierlichen granulieren
DE3844025 1988-12-27

Publications (1)

Publication Number Publication Date
EP0451159A1 true EP0451159A1 (fr) 1991-10-16

Family

ID=6370352

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89118963A Expired - Lifetime EP0375858B1 (fr) 1988-12-27 1989-10-12 Procédé de granulation continue
EP89912447A Pending EP0451159A1 (fr) 1988-12-27 1989-10-12 Procede de granulation en continu

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP89118963A Expired - Lifetime EP0375858B1 (fr) 1988-12-27 1989-10-12 Procédé de granulation continue

Country Status (11)

Country Link
US (1) US5188786A (fr)
EP (2) EP0375858B1 (fr)
JP (1) JPH04502423A (fr)
KR (1) KR970010330B1 (fr)
AT (1) ATE91088T1 (fr)
DE (2) DE3844025A1 (fr)
DK (1) DK96391D0 (fr)
ES (1) ES2057050T3 (fr)
RU (1) RU1836137C (fr)
TR (1) TR24022A (fr)
WO (1) WO1990007375A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9513327D0 (en) * 1995-06-30 1995-09-06 Uniliver Plc Process for the production of a detergent composition
DE19533790A1 (de) * 1995-09-13 1997-03-20 Henkel Kgaa Verfahren zur Herstellung eines amorphen Alkalisilikats mit Imprägnierung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059538A (en) * 1972-10-20 1977-11-22 Lever Brothers Company Method for preparing granulated detergent formulations
GB8329880D0 (en) * 1983-11-09 1983-12-14 Unilever Plc Particulate adjuncts
DE3617756C2 (de) * 1985-05-29 1995-01-19 Lion Corp Verfahren zum Herstellen einer granularen Detergentien-Zusammensetzung mit hoher Schüttdichte
US4925585A (en) * 1988-06-29 1990-05-15 The Procter & Gamble Company Detergent granules from cold dough using fine dispersion granulation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9007375A1 *

Also Published As

Publication number Publication date
KR970010330B1 (ko) 1997-06-25
DE58904842D1 (de) 1993-08-05
KR900701385A (ko) 1990-12-01
DE3844025A1 (de) 1990-06-28
EP0375858B1 (fr) 1993-06-30
US5188786A (en) 1993-02-23
JPH04502423A (ja) 1992-05-07
EP0375858A1 (fr) 1990-07-04
TR24022A (tr) 1991-02-01
ES2057050T3 (es) 1994-10-16
RU1836137C (ru) 1993-08-23
DK96391A (da) 1991-05-22
DK96391D0 (da) 1991-05-22
ATE91088T1 (de) 1993-07-15
WO1990007375A1 (fr) 1990-07-12

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Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 89118963.1/0375858 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 08.11.91.